Definitely happens! I was in closet until about 30 and am very masculine. Nobody had a clue before I came out. In high school I had about 4 friends I jacked off with. With two of them, I did it all the time. All are straight and married now. In college, I had jerked with about 7 more very close friends and frat brothers. Again all are straight except 1 who is also now married but could never accept himself as gay. The reason why I had these experiences is that we were young and horny, all very close friends and they had complete trust in me. Never did it as a group even though some of us were in same click. Never told each other about the other. Most importantly, I never crossed the line and touched them even though I sure as hell wanted to. This allowed repeat occurrences. However, I fell in love with a couple of them so this was also HUGE source of conflict and pain. Never wanted to risk losing their friendship,though. Yes I wonder what would have and could have happened with a couple of them if I just reached out and touched their cocks but I know this would have fucked the friendship for majority of them. Today I have partner who I love, plus a lot of hot memories and all of their friendships. Although it hurt like hell at the time I think I made the right choices. I think almost all young guys will openly jerk off when they have a male friend they connect with and trust and are fucked up. Although it fucks majorly with our heads, sometimes us gays need to learn not to push certain "sexual" situations. Accept what ever you get from it and take them for what they sometimes are, a moment of straight boy drunken and/or drug induced disinhibition, horniness with the realization that you are the most trusted and closest male friend they would ever consider doing this with. So unless you're willing to risk everything you have with them, I suggest you let them do the first move and respect their boundaries no matter how hard it may seem.